RC-Crypt is a program to keep your data safe. It is an easy to use command line program that encrypts your data. It works with big and little endian hardware, and has been tested on Linux, HPUX and Solaris. It uses the rc5 algorithm, which has proved almost impossible to crack with key sizes of greater than 64 bits.

(See www.distributed.net for details of how long it took thousands of computers worldwide to crack a 64 bit key when the initial content of the data was known.)It has a multitude of options making it very suitable for inclusion into complex scripts.

How to use this program.

1. Compile it.The program uses glibc, so make sure that is installed on your system. A Makefile has been created, that will allow you to build it usingmakeIf you wish to add options, feel free to do so

2.Copy both the rccrypt and the rcc program to somewhere you can run it.Find the places you could copy it to using echo $PATH(It is likely you will need root access for most of these.)

3. Use it.rccrypt will encrypt or decrypt the input given to it according to the rc5 Algorithm as described by RSA Laboratories.